How do I convert my MP3 files to the AAC format in iTunes (v7.5)?

Posted under Windows Vista, iTunes by x2ws

Converting MP3 files to AAC format has many benefits but for me the main reason is much smaller files.

1. Ensure that you have added your MP3 files to the iTunes library.
2. Select the MP3 files you would like to convert then right-click on the selected files and select Convert Selection to AAC.
3. After the conversion is complete you may safely remove your MP3 files from the iTunes library.